Quality Control of 2-Phenylpyridine. So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic. Compound: 2-Phenylpyridine, is researched, Molecular C11H9N, CAS is 1008-89-5, about Visible-Light-Driven C4-Selective Alkylation of Pyridinium Derivatives with Alkyl Bromides.
Reported herein is a general strategy for the photochem. cross-coupling between N-amidopyridinium salts and various alkyl bromides under photocatalyst-free conditions, granting facile access to various C4-alkylated pyridines. This approach exploits the intriguing photochem. activity of electron donor-acceptor (EDA) complexes between N-amidopyridinium salts and bromide, which provides a photoactive handle capable of generating silyl radicals and driving the alkylation process. The robustness of this protocol was further demonstrated by the late-stage functionalization of complex compounds, e.g., dehydroepiandrosterone and oxaprozin, under mild and metal-free conditions.
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Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles